Add mail merge script with sample names and letter template

Input/Letters/starting_letter.txt

@@ -0,0 +1,7 @@
+Dear [name],
+
+You are invited to my birthday this Saturday.
+
+Hope you can make it!
+
+Angela

Input/Names/invited_names.txt

@@ -0,0 +1,8 @@
+Aang
+Zuko
+Appa
+Katara
+Sokka
+Momo
+Uncle Iroh
+Toph

Output/ReadyToSend/letter_for_Aang.txt

@@ -0,0 +1,7 @@
+Dear Aang,
+
+You are invited to my birthday this Saturday.
+
+Hope you can make it!
+
+Angela

Output/ReadyToSend/letter_for_Appa.txt

@@ -0,0 +1,7 @@
+Dear Appa,
+
+You are invited to my birthday this Saturday.
+
+Hope you can make it!
+
+Angela

Output/ReadyToSend/letter_for_Katara.txt

@@ -0,0 +1,7 @@
+Dear Katara,
+
+You are invited to my birthday this Saturday.
+
+Hope you can make it!
+
+Angela

Output/ReadyToSend/letter_for_Momo.txt

@@ -0,0 +1,7 @@
+Dear Momo,
+
+You are invited to my birthday this Saturday.
+
+Hope you can make it!
+
+Angela

Output/ReadyToSend/letter_for_Sokka.txt

@@ -0,0 +1,7 @@
+Dear Sokka,
+
+You are invited to my birthday this Saturday.
+
+Hope you can make it!
+
+Angela

Output/ReadyToSend/letter_for_Toph.txt

@@ -0,0 +1,7 @@
+Dear Toph,
+
+You are invited to my birthday this Saturday.
+
+Hope you can make it!
+
+Angela

Output/ReadyToSend/letter_for_Uncle Iroh.txt

@@ -0,0 +1,7 @@
+Dear Uncle Iroh,
+
+You are invited to my birthday this Saturday.
+
+Hope you can make it!
+
+Angela

Output/ReadyToSend/letter_for_Zuko.txt

@@ -0,0 +1,7 @@
+Dear Zuko,
+
+You are invited to my birthday this Saturday.
+
+Hope you can make it!
+
+Angela

main.py

@@ -0,0 +1,13 @@
+PLACEHOLDER = "[name]"
+
+with open("Input/Names/invited_names.txt") as names_file:
+    names = names_file.readlines()
+
+with open("Input/Letters/starting_letter.txt") as letter_file:
+    letter_contents = letter_file.read()
+
+for name in names:
+    stripped_name = name.strip()
+    new_letter = letter_contents.replace(PLACEHOLDER, stripped_name)
+    with open(f"Output/ReadyToSend/letter_for_{stripped_name}.txt", "w") as completed_letter:
+        completed_letter.write(new_letter)